SYSTEMS AND METHODS FOR STENT DELIVERY

摘要

Systems and methods for stent deployment are provided. One system includes a delivery subsystem having a nose tip coupled with a sheath such that the nose tip and sheath are movable together, wherein the sheath is configured to receive therein a stent for deployment. The stent surrounds an inner shaft of the delivery subsystem. The system further includes an actuating subsystem configured to advance the sheath along the inner shaft from a proximal to distal direction to deliver the stent in a reverse deploy direction.

主权项

1. A stent delivery system comprising:
an inner elongate shaft having a proximal portion and a distal portion; a radially expandable prosthesis disposed over the inner elongate shaft, the prosthesis having a radially collapsed configuration and a radially expanded configuration, wherein in the collapsed configuration the prosthesis is adapted to be delivered through a vasculature, and in the expanded configuration the prosthesis engages a vessel wall; an outer elongate shaft having a proximal portion and a distal portion; and a sheath having a proximal portion and a distal portion, the sheath disposed over the radially expandable prosthesis, wherein distal advancement of the inner shaft advances the sheath distally, thereby allowing the prosthesis to radially expand from a proximal end thereof to a distal end thereof.